adjust recursive build dep logic (#7695)

* adjust recursive build dep logic

* adjust logic

* adjust logic

* adjust logic

* cleanup

lib/const.rb

@@ -1,6 +1,6 @@
 # Defines common constants used in different parts of crew
 
-CREW_VERSION = '1.28.4'
+CREW_VERSION = '1.28.5'
 
 # kernel architecture
 KERN_ARCH = `uname -m`.chomp

lib/package.rb

@@ -41,6 +41,8 @@ class Package
     pkgObj = const_get(className)
     pkgObj.name = pkgName
 
+    @crew_current_package = @crew_current_package.nil? ? pkgObj.name : @crew_current_package
+
     return pkgObj
   end
 
@@ -91,8 +93,9 @@ class Package
     # parse dependencies recursively
     expandedDeps = deps.uniq.map do |dep, depTags|
       # check build dependencies only if building from source is needed/specified
-      next unless (include_build_deps == true) || \
-                  ((include_build_deps == 'auto') && is_source) || \
+      # Do not recursively find :build based build dependencies.
+      next unless (include_build_deps == true && @crew_current_package == pkgObj.name) || \
+                  ((include_build_deps == 'auto') && is_source && @crew_current_package == pkgObj.name) || \
                   !depTags.include?(:build)
 
       # overwrite tags if parent dependency is a build dependency